//#region src/selection/selection.types.d.ts
declare namespace Selection {
  /**
   * The ways a calendar can accept user selection.
   *
   * - `'single'`       -  one date at a time.
   * - `'range'`        -  a start date and an optional end date.
   * - `'multi'`        -  an unordered set of individual dates.
   * - `'multi-range'`  -  multiple contiguous ranges.
   */
  type SelectionMode = 'single' | 'range' | 'multi' | 'multi-range';
  /**
   * Represents a contiguous date range.
   *
   * `to` is `null` while the user is mid-selection.
   *
   * @typeParam TDate - The adapter's date type.
   */
  type DateRange<TDate> = {
    /** The inclusive start of the range. Always present once selection begins. */from: TDate; /** The inclusive end of the range, or `null` if not yet chosen. */
    to: TDate | null;
  };
  /**
   * Maps a {@link SelectionMode} to its corresponding value shape.
   *
   * @typeParam TDate - The adapter's date type.
   * @typeParam Mode  - The active selection mode.
   */
  type CalendarValue<TDate, Mode extends SelectionMode> = Mode extends 'single' ? TDate | null : Mode extends 'range' ? DateRange<TDate> | null : Mode extends 'multi' ? TDate[] : Mode extends 'multi-range' ? DateRange<TDate>[] : never;
  /**
   * Constraints that restrict which dates can be selected or navigated to.
   *
   * @typeParam TDate - The adapter's date type.
   */
  interface ISelectionConstraints<TDate> {
    /** Array of specific disabled dates, or a predicate returning true for disabled dates. */
    disabled?: TDate[] | ((date: TDate) => boolean) | undefined;
    /** Minimum selectable date (inclusive). Days before this are disabled. */
    fromDate?: TDate | undefined;
    /** Maximum selectable date (inclusive). Days after this are disabled. */
    toDate?: TDate | undefined;
  }
}
//#endregion
export { Selection as t };